if the function is not a built-in, you have to import the module it is contained in. See python library, and the list of built-ins.

Oct 28, 2014 · I've tried to find a comprehensive guide on whether it is best to use import module or from module import. I've just started with Python and I'm trying to start off with best …

Oct 23, 2017 · I can't import standard math module in pycharm, I'm getting an error: "No module named math", from python shell I can import it, what can cause that?

Mar 2, 2010 · from yadda.yadda import * is most useful when hacking at things in the Python command line, e.g. when you're using Python as a calculator and you just type out from math …

Jul 7, 2009 · I'm new to Python and programming in general (a couple of weeks at most). Concerning Python and using modules, I realise that functions can imported using from a …

May 23, 2017 · Is there a library function that can enumerate the prime numbers (in sequence) in Python? I found this question Fastest way to list all primes below N but I'd rather use someone …

Jul 26, 2012 · That's the compiled version of the original .py file and python will use that if it's in the path. It only gets updated (re-compiled) if the source (.py) file is exists and is newer.

As the traceback shows, the problem isn't in main.py, but in module1.py: Traceback (most recent call last): File "Z:\Python\main.py", line 10, in <module> module1.cool() File …

When you import math, Python walks through the directories in sys.path and imports the first file called math.py (or a directory called math with an __init__.py file inside) that it sees. The first …

Apr 30, 2021 · According to Python import docs the use of from module import * is a wild card form and is not allowed to be used in class or function definition. In addition, it isn't a good …